The current study aimed to verify the changes in performance, physiological and biomechanical variables throughout a season in master swimmers.
Twenty-three master swimmers (34.9 ± 7.4 years) were assessed three times during a season (December M, March M, June M), in indoor 25 m swimming pools. An incremental 5 × 200 m test was used to evaluate the speed at 4 mmol?Lof blood lactate concentration (sLT), maximal oxygen uptake (), peak blood lactate ([La-]peak) after the test, stroke frequency (), stroke length (), stroke index () and propelling efficiency (). The performance was assessed in the 200 m front crawl during competition.
Swimming performance improved between M, M(2%, = 0.03), and M(4%, &lt; 0.001). Both sLT and increased throughout the season (4% and 18%, &lt; 0.001, respectively) but not [La-]peak. While decreased 5%, , and increased 5%, 7%, and 6% (&lt; 0.001) from Mto M.
Master swimmers improved significantly in their 200 m front crawl performance over a season, with decreased and increased and Despite the improvement in energetic variables, the change in performance seemed to be more dependent on technical than energetic factors.
Master swimmers improved significantly in their 200 m front crawl performance over a season, with decreased SF, and increased SL, ηp and SI. Despite the improvement in energetic variables, the change in performance seemed to be more dependent on technical than energetic factors.Temporomandibular joint (TMJ) disorder has been reported to be 1.5 to two times more common in women than men. Such a gender-based difference could be attributed to behavioral, hormonal, anatomical, and psychological characteristics. Physiological hormonal differences between genders could be one of the possible explanations for the higher incidence of temporomandibular disorder (TMD) in women. As the plasma level of certain female hormones increases during gestation, it could be assumed that there is a higher prevalence of dysfunctional signs and symptoms in pregnant women. We performed an epidemiological survey based on screening for TMD in a group of 108 pregnant women and found that 72% of young women reported significant signs of TMJ disorders, 9% of the young women reported mild signs of TMJ disorders, and 19% of the included subjects reported no signs or symptoms of TMD. The presence of estrogen receptors in the temporomandibular joint of female baboons could be the basis of an explanation for the increased prevalence of dysfunction in young women reported in the literature and the high feedback we have seen of joint noises in pregnant women. On the basis of the present findings, it could be assumed that gestation period could represent a risk factor for craniomandibular dysfunctions.Polycystic ovary syndrome (PCOS) is a common endocrine disorder that is characterized by menstrual irregularity and elevated serum androgens, and is often accompanied by insulin resistance. The etiology of PCOS is unknown. Lifestyle interventions and weight loss, where appropriate, remain first-line treatments for women with PCOS. Regular physical activity is recommended for women with PCOS to maintain a healthy weight and cardiovascular fitness.
To review the evidence for the impact of various exercise interventions on hormone levels in women with PCOS.
A systematic review of original studies indexed in PubMed that utilized an exercise intervention in women with PCOS and reported hormone values pre- and post-intervention. Studies in which the effects of the exercise intervention could be determined were included.
Vigorous aerobic exercise improves insulin measures in women with PCOS. Resistance or strength training may improve androgen levels, though additional studies are warranted. Studies with yoga are limited but suggest improvements in androgens. Limited information is available on the impact of exercise on adipokines and anti-Müllerian hormone, warranting further investigation.
Recommended guidelines for women with PCOS include vigorous aerobic exercise and resistance training to improve measures of insulin sensitivity and androgen levels.
Recommended guidelines for women with PCOS include vigorous aerobic exercise and resistance training to improve measures of insulin sensitivity and androgen levels.This study examined the effects of curcumin and fenugreek soluble fiber supplementation on the ventilatory threshold (VT) and peak oxygen consumption ( V ˙ O2 peak).Forty-five untrained men and women were randomly assigned to one of three supplementation groups placebo (PLA, = 13), 500 mg?dayCurQfen(CUR, = 14), or 300 mg?dayfenugreek soluble fiber (FEN, = 18). Participants completed a maximal graded exercise test on a cycle ergometer to determine the VT and V ˙ Opeak before (PRE) and after (POST) 28 days of daily supplementation. Separate, one-way analyses of covariance (ANCOVAs) were used to examine the between-group differences for adjusted POST VT and V ˙ Opeak values, covaried for the respective PRE-test values.
The adjusted POST VT V ˙ Ovalues for the CUR (mean ± SD = 1.593 ± 0.157 L?min) and FEN (1.597 ± 0.157 L?min) groups were greater than (= 0.039 and = 0.025, respectively) the PLA (1.465 ± 0.155 L?min) group, but the FEN and CUR groups were not different (= 0.943). There were no differences in the adjusted V ˙ Opeak values (F = 0.613, = 0.547) among groups.
These findings indicated that fenugreek soluble fiber was responsible for the improvements in the submaximal performance index for both CUR and FEN groups.
These findings indicated that fenugreek soluble fiber was responsible for the improvements in the submaximal performance index for both CUR and FEN groups.Work-related stress represents a relevant public health issue and solution strategies are mandatory. Yoga is a common approach to manage stress and its effectiveness has been extensively confirmed. Therefore, this study aims systematically to review the effectiveness of Yoga interventions carried out at workplace on work-related stress among employees and to assess their impact quantitatively. Springerlink, MEDLINE, PubMed, CINAHL, Web of Science, Scopus, Cochrane CENTRAL and PEDro databases were searched. Clinical trials comparing workplace Yoga interventions to control groups, and evaluating perceived stress as outcome measure, were assessed for eligibility. All forms and styles of Yoga were considered for the analysis. Out of 3392 initially identified, 6 studies were included in the meta-analysis; 266 participants practicing Yoga interventions at worksite were compared to 221 subjects in control group. https://www.selleckchem.com/products/ABT-263.html Included studies showed "some concerns" about different domains of source of bias. Quantitative analysis showed an overall effect size of -0.